摘要:
The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
摘要:
Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene with cyclopentane, 2-methylbutane, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, or dimethoxymethane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.
摘要:
A composition comprising 1,3,3,3-tetrafluoropropene (HFO-1234ze) and one or more compounds selected from the group consisting of 1,1,1,2-Tetrafluoroethane (HFC-134a), Difluoroethane (HFC-152a), water, 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,1,1,3,3-pentafluorobutane (HFC-365mfc), water and CO 2 .
摘要:
Provided are azeotrope-like compositions comprising tetrafluoropropene and n-butane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
摘要:
The invention refers to a composition comprising a mixture of difluoromethane, propylene, and a non-halogenated hydrocarbon refrigerant gas selected from dimethylether and propane, wherein: a) the amount of difluoromethane is comprised from 5 to 27% by weight of the total weight of the refrigerant gas combination; b) the amount of the non-halogenated hydrocarbon compound is comprised from 2 to 10% by weight of the total weight of refrigerant gas combination; c) the amount of propylene is comprised from 63 to 93% by weight of the total weight of refrigerant gas combination; and being the sum of the components of the refrigerant gas combination of 100% by weight; a refrigerant system containing thereof; and a refrigerant process using the composition.
摘要:
To provide a composition containing HFO-1123 having a low GWP, useful as a heat transfer composition, an aerosol sprayer, a foaming agent, a blowing agent, a solvent or the like. A composition containing HFO-1123, and at least one first compound selected from the group consisting of HFO-1132, HFO-1132a, CFO-1113, HCFO-1122, HCFO-1122a, HFC-143 and methane.
摘要:
Use of a gas mixture selected from the group comprising:—trifluoroiodomethane (CF3I) in concentrations from 85% to 99% by weight and a gas selected from the group comprising fluoroethane, pentafluoroiodoethane, pentafluoroethane, dimethyl ether, propylene or their mixtures in concentrations from 15% to 1% by weight as refrigerant, propellant, foaming and/or extinguishing gases as replacements or alternatives for other gases or HFC (hydrofluorocarbon), HFO (hydrofluoro-olefin) and HFE (hydrofluoroether) mixtures.
摘要:
This invention provides a heat transfer composition comprising from about 5 to about 40 % by weight of trans -1,3,3,3-tetrafluoropropene (R-1234ze(E)), from about 20 to about 35 % by weight difluoromethane (R-32), from about 15 to about 30 % by weight R-125 pentafluoroethane (R-125), and from about 12 to about 50 % by weight 1,1,1,2-tetrafluoroethane (R-134a).
摘要:
The present invention relates, in part, to heat transfer compositions and methods that include (a) from about 60% to about 70% by weight of HFC-32; (b) from about 20% to about or less than 40% by weight of a compound selected from unsaturated -CF3 terminated propenes, unsaturated -CF3 terminated butenes, and combinations of these; and (c) from greater than about 0% to about 10% by weight of n-butane, isobutane, and combinations thereof.
摘要:
This invention provides a heat transfer composition comprising from about 5 to about 40 % by weight of trans -1,3,3,3-tetrafluoropropene (R-1234ze(E)), from about 20 to about 35 % by weight difluoromethane (R-32), from about 15 to about 30 % by weight R-125 pentafluoroethane (R-125), and from about 12 to about 50 % by weight 1,1,1,2-tetrafluoroethane (R-134a).